Hope this helps . . . here’s what I did in the past:
Requires that you own Sony Vegas as well.
Sync all the cameras in Premiere Pro, export project as AAF and open in Vegas. All your cameras show up there . . . select all of them and create a multicam track and them cut your project. Worked great with 6 camera for me.
You then “save as” your Vegas project as AAF and open back in Premiere . . . hope that helps.